Rose Roofing Dura Torch Glass Underlay – 16m
Torch-On Roofing Underlay with SBS Modified Bitumen for Durable Flat Roof Systems
The Rose Roofing Dura Torch Glass Underlay – 16m is a high-performance torch-on roofing membrane designed for use as the base layer in a built-up roofing system. Manufactured with a 100g/m² glass fibre base, this underlay is coated with SBS (Styrene-Butadiene-Styrene) modified bitumen, providing enhanced flexibility, weather resistance, and durability—making it ideal for flat or low-pitched roofs.
Engineered for professional roofing applications, this product is surfaced with sand on the top and finished on the underside with a flame-dispersible polyethylene film, which facilitates easy application using a gas torch. It is suitable for use on habitable buildings, offering long-lasting performance as part of a multi-layer waterproofing system.
Product Details
- Roll length: 16 metres
- Roll width: Standard (typically ~1m; not explicitly stated)
- Material: 100g/m² glass fibre base
- Coating: SBS modified bitumen
- Surface finish: Sanded top, polyethylene film underside
- Boxed dimensions: W 20.0cm × H 100.0cm × D 20.0cm
- Boxed weight: 3.2kg (actual product weight approx. 32kg)
- Application: Torch-on underlay for built-up roofing systems
Features
- Utilises 100g/m² glass fibre reinforcement for added strength
- Coated with SBS modified bitumen for superior flexibility and temperature tolerance
- Sanded upper surface for bonding with subsequent layers
- Flame-dispersible polyethylene backing allows easy torch-on application
- Suitable for use on habitable and residential buildings
- Forms part of a multi-layer built-up torch-on roofing system
- Excellent performance in flat and low-slope roofing applications
- Durable and weather-resistant formulation
- Designed for professional roofing contractors and installers
- Lightweight boxed packaging for easier handling and storage
Frequently Asked Questions (FAQ)
Q: What is this product used for?
It’s used as an underlay in a built-up torch-on roofing system, providing the first layer of waterproofing protection beneath cap sheets or top membranes.
Q: Is it suitable for habitable buildings?
Yes, the Dura Torch Glass Underlay is manufactured to meet standards required for use on habitable residential and commercial buildings.
Q: How is this applied?
This membrane is applied using a gas torch, with the polyethylene film on the underside melting to adhere it to the roofing deck or insulation layer.
Q: What does SBS modified mean?
SBS (Styrene-Butadiene-Styrene) is a type of rubber-modified bitumen that enhances flexibility, especially in low temperatures, and improves overall durability.
Q: What surfaces can this be installed on?
It can be used over prepared concrete, timber decks, or insulation boards, as part of a multi-layer torch-on roofing system.
Q: What is the approximate coverage of this roll?
A 16m roll typically covers around 16 square metres, but actual coverage will depend on overlaps and installation detailing.
The Rose Roofing Dura Torch Glass Underlay – 16m is a trusted and proven choice for roofing professionals seeking reliable underlayment performance. Its SBS-modified construction and ease of application make it an essential component in modern flat roofing systems.
